Constructan(TM)NEW CooSpo H6 ANT Bluetooth V4.0 Wireless Sport Heart Rate Monitor Smart Sensor Chest Strap for iPhone 4S 5 5S 5C 6 6Plus Being a sensor type heart rate monitor, it will detect and send your real-time heart rate to the smart phone accurately. Compatible with for iPhone 4S and later, and with selected Android devices including for Samsung Galaxy S3 and S4 using Android 4.3 or later Supported apps: Wahoo Fitness, Fitcare, 60Beat, RunKeeper, Strava, MapMyRun, Endomondo, Sprots Tracker etc. With the chest strap based on high quality material, it can be attached to your skin closely. This Bluetooth 4.0 technology supported device is very fashion and creative